Early in June, a team of about 50 astronomers will spread out across South America and Southern Africa to attempt an unprecedented observation of a small body 1 billion mi. beyond Pluto. If it works, it will help ensure NASA’s New Horizons probe will not smash into an obstacle at 30,000 mph when it encounters its next Kuiper Belt Object (KBO). The nuclear-powered spacecraft that rewrote the textbooks on Pluto is hurtling toward a tiny frozen chunk of primordial material designated ...


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